Cut sheet manufacturing device of cable crosslinked polyethylene insulation layer of power distribution network
A technology of cross-linked polyethylene and manufacturing devices, which is applied in metal processing and other directions, can solve problems such as cable insulation layer breakdown and accidents, and achieve the effects of improving accuracy, meeting the size requirements of test products, and improving production efficiency
Inactive Publication Date: 2016-09-07
STATE GRID CORP OF CHINA +2
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Problems solved by technology
Once a water branch is formed during operation, it will be converted into an electric branch during the growth process with the continuous concentration of the field strength at its tip, and the electric branch may cause the cable insulation layer to be broken down in a short period of time, resulting in an accident
Method used
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[0011] The slicing device for the cross-linked polyethylene insulating layer of the distribution network cable proposed by the present invention has a structure such as figure 1 As shown, it includes: a base 1, a support frame 2, a pressing screw 9 and a cutter 8. Bracing frame 2 is fixed on the base 1, and pressing down screw rod 9 is installed in the center of supporting frame 2, and pressing down handle 10 is installed on the upper end of pressing down screw rod 9, and the lower end of pressing down screw rod 9 is provided with pressing down circular spacer 11. Cutter 8 is inserted in the mounting groove 12 of pressing down circular spacer 11 lower surfaces, as figure 2 shown. The cutting knife 8 is kept in the center of the support frame 2 by the upper screw handle 3 and the upper arc pad 5 . The cable 7 to be cut is placed on the base 1, and is kept in the center of the support frame by the lower arc pad 6 and the lower screw handle 4.
[0012] Below in conjunction wi...
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The invention relates to a cut sheet manufacturing device of a cable crosslinked polyethylene insulation layer of a power distribution network, and belongs to the technical field of main insulation latent fault diagnosis and full-life-cycle aging state evaluation of crosslinked polyethylene power cables. A supporting frame of the device is fixed to a base. A press-down screw is mounted in the center of the supporting frame, a press-down handle is mounted at the upper end of the press-down screw, and a round press-down cushion block is arranged at the lower end of the press-down screw. A cutter is inserted into a mounting groove in the lower surface of the round press-down cushion block and keeps in the center of the supporting frame through upper screw handle and upper arc cushion blocks. A cable to be cut is arranged on the base and located in the center of the supporting frame and keeps in the center of the supporting frame through lower arc cushion blocks and lower screw handles. According to the device, the requirement for the size of a test object for crosslinked polyethylene medium loss spectral characteristic measurement is met, the manufacturing efficiency of the test object is greatly improved, two to four times of measurement can be met through one time of cutting, and accuracy of the testing result can be improved through multiple times of testing.
Description
technical field [0001] The invention relates to a slicing device for cross-linked polyethylene insulating layer of distribution network cables, and belongs to the technical field of latent fault diagnosis of main insulation of cross-linked polyethylene power cables and evaluation of aging state in the whole life cycle. Background technique [0002] With the rapid development of cities and modern industries, cross-linked polyethylene (XLPE) power cables are widely used due to their excellent electrical properties, large transmission capacity, good heat resistance, easy bending, simple accessory joints, and convenient installation and laying. In urban transmission lines and distribution networks. The electrical properties of cable insulation are excellent in a dry environment. However, after the cable is put into operation, it will be aged by factors such as electricity, heat, humidity, machinery, and chemistry. Studies have shown that water tree branch aging is the main caus...
Claims
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IPC IPC(8): B26D1/04B26D5/10
CPCB26D1/04B26D5/10
Inventor 沙彥超李大卫徐党国蔡巍卢毅龙凯华李志刚崔贺平吴刚邓春孙云生杨大伟李帆郑一博
Owner STATE GRID CORP OF CHINA